Curved-block mold



rare-er Fries.

DANIEL FIX, OIE MILACA, MINNESOTA.

CUBVED-BLOCK MOLD.

misses.

Specification of Letters Patent.

Patented June 6, 1922.

Application filed May 19, 1921. Serial No. 470,840.

To all whom-it may concern:

Be it known that I, DANIEL FIX, a citizen of. the United States, residing at Milaca, in the county of Millelacs, State of Minnesota, have invented certain new and useful Improvements in Curved-Block Molds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in molds and particularly to molds for making curved blocks.

One object of the invention is to provide a strong and durable form or mold which can be easily and quickly put together or taken apart in a short time, and with a small amount of labor.

Another object is to provide a mold of this character which is formed to be firmly clamped into assembled position so thatall of the resultant blockswill be of uniform dimensidns and curvature.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is an elevation of the mold looking toward the concave side thereof.

Figure 2 is an elevation of the mold looking toward the convex side thereof.

Figure 3 is a. top plan view of the mold.

Figure is a vertical transverse sectional view through the mold, adjacent one end thereof, on the line 4% of Figure deferring particularly to the accompanying); drawing, 10 and 11 represent the longitudinally curved side boards [of the mold, which are disposed in parallel relation, Extending at right angles from the convex face of the board 10, and at each end portion thereof, is an end board 12,

" said board having a pair of reinforcing bars 13 secured transversely on the outer face. Each of the bars 13 is extended past the inner edge of the board and reduced for passage through an opening in the side board 10, said ends of the bars being then upset on the outer concave face of the board 10, to maintain the board 12 1n proper spaced right angular relation to the board 10. In each end of the board 10, outwardly of the end board 12, there is formed an open-ended slot 1 1-, and through this slot is passed a bolt 15. In the corresponding portions of the ends of the board 11 there are formed the circular openings 16, which receive the threaded ends of the bolts 15, a washer 17, and a. nut 18, being engaged on the said end of each bolt, outwardly of the board 11. Secured tranversely on the inner concave face of the board 11, adjacent its ends are the battens 19, against which the outer faces of the free ends of the end boards 12 are adapted to engage, when the parts are in assembled position, as shown in Figure 8. Pivotally mounted on the other end of each bolt 15, for engagement with the outer face of the board 10, is a cam lever 20, which when swung into the position of Figure 8, will draw the board 11 into firm contact with the free edges of the end boards 12.

By means'of the slots let, the bolts 15 may be readily-swung out of engagement with the board 10, when the cam lever is swung intoreleased position, thus permitting the easy and quick separation of the parts of the mold, and assembly thereof.

hat is claimed is:

A mold for a curved block comprising a pair of parallel curved side boards, one of the boards having transverse battens adjacent one end and open-ended slots in its ends outwardly of the battens, the other side board having an angularly extending end board carried by each end portion of its convex face, said endboards being disposed to engage the inner face of the first board inwardly of the battens, a bolt disposed through each end of the second board outwardly of the end board and passing through an open-ended slot of the first board, and a cam lever pivotally carried by each bolt for engagement with the outer face of the second board.

in testimony whereof, I aflix. my signature, in the presence of two witnesses.

DANIEL FIX.

Witnesses C. E. ERIoKsoN,

J. P. DE Rose. 

